Lubricator.



PATENTED MAR'. '13, 1906.

.R WO Sml. AA EG LI` GR m LL APPLICATION FILED 00T.28, 1905.

lsllhllllll III other part to be lubricated.

majeur option.

L'Ew'is GLEAsoN, .on FRANKLmIPENNsYLvANIA.

. LUBRlQ-ATR.

specification ef Letters Patent.

resented ivraen 13,1906.

Application ilerl October 28,1905. Serial No. 284,872.

To all whom, it muy concern:

Be it known that I, .L'wIs GLEAsoN, a citizen of the United States, residing at Franklin, in thel county of Venango and State of Pennsylvania, have invented new and useful Improvements in Lubricators, of which the' following is a specification.

My invention relates to` lubricators; and its object is to provide an oil-cup of simple construction and efiicient operation designed to be used to automatically lubricate the cylinders .of air-compressors, `air-pumps, and.

similar .pneumaticdevices in which lthe airpressure is utilized to operatethe lubricator to admit oil intermittently to the cylinder or To this end my inventionis embodied in preferable form in the device illustrated in the accompanying drawing and hereinafter described.

In the drawing the view shown is a central 'vertical section of my improved lubricator.

Referring to the drawing, A is the base of the cup or lubricator, and it is provided'with a depending exteriorly-threaded shank B, adapted to be secured to the cylinder or similar part to be lubricated and provided with an oil passage-way C, having its lower end seated on the washer.-

v guideway for` the valve-rod, but also as an oil-feed passage-way. The guide-cage is .pro-

vided with a conical valve-seat K at the lower end of opening J, against which the upper side of thefvalve-head G is adapted to seat when the valve is in the upper closing position.

A tube or pipe L is screw-threaded at its lower end into the base A and forms thev cup or receptacle for the oil. The lower end of this cup bears on a flange M, extending from the guide-cage and serves tohold the latter firmly in place.

formed several openings N, by which o'i may feed of oil.

ypass from the receptacle to thepassageeway4 J. The lower end of the valve-rod abovefthe head is cut away for some distance along the vrod to form a reduced portion O, so as to provide a channel for the free passage of the oil down passage-way J. The extent of the reduction of the -rod determines the amount of the ilow of oil from-the receptacle to the part to be lubricated, and this reduced portion, therefore, serves as a governing means for the The rod H extends up into the oil-cup and through an opening P in an oil-cup cover Q, which is adapted to close the upper end of the oil-cup. The opening P is enlarged'sufficiently to'form an air-inlet, Vand the lower surface of the cover is counterbored at R around the opening away from the rod, so as to prevent any upward pumping of the oil by contact of the rod with the cover. Owing to the air-inlet provided .there is no pressure within the cup, and hence a simple loose-fitting slip-cover may be provided. The upper end of the rod projects above thetop of the cover. l

The operation is as follows: Upon thestroke of the piston in the air-pump or cylin-4 der the air-pressure passing through the paslower seat, opening the chamber Dto passage- 'l sage-way@ will lift the rod-valve F from its 85 way C and permitting the oil therein to flow to the cylinder. per face will seat in the valve-seat K, closing As the valve is lifted its up- Y the passage-way J and cutting 0H the supply 9o of oil from the receptacle. As the piston re-` turns the pressure will be removed, and the atmospheric pressure in the receptacle, by the admission of air through the inlet in the cover and the weight of the rod, will cause the valve 9 5 to drop down again upon its lower seat. Whilev the valve is in its upper position, a small quantity of oil will be admitted from the receptacle to thepassage-way J byy reason of the reduced portion O of the rodv being roc in register with the openings N, and when the valve drops down this quantitv of oil will be carried down into the oil-chamber D. The rod portion H of the-valve above the cover' not'only adds weight to the valve, so that it maydescend rapidly, but also'serves as an indicator to denote by its recipr'ocation that the valve is working properly.

i Having thus describ d my invention, what I'claim is-' In the tubular part of the guideca eare In alubricatorfor air-pumping devices, in

IIO

combination with an oil-receptacle, a valve,

a valve-chamber, said chamber having an opening at its lower end leading to the airpressure device, and an opening at the upper end leading to the receptacle, said valve having a face adapted to seat by gravity on said the tube at its upper end and having a reduced portion between its upper end and the.

valve-head, and oil-entrance openings in the wall of said tube between its ends, substantially as described.

In testimony whereof I affix iny signature in presence of two subscribing witnesses.

LEWIS GLEASON.

Witnesses:

SAML. L. RICE, H. L. FERGUSON, 

